atha kasmād ucyate brahma bṛṁhati bṛṁhayati ca
atha kasmād ucyate brahma bṛṁhati bṛṁhayati ca |
(Atharva-śikhā Upaniṣad: 3.5; cited in Bhagavat Sandarbha: 6)
“Now, wherefore is this called Brahman? [Because] It nourishes and causes nourishment [in others, alt., expands and causes expansion in others].”